Originally Posted by HM2Grunt
I work on guns,but have only dabbled in ARs. How hard is it to put these things together, and get it right, head spacing and stuff like that? I am assuming that all parts are probably milspec. Are they all put together the same? Didn't carry an M16, just a 45, so I didn't really have one of my own take one apart. Was assigned to weapons platoon, so I can do M-60.
Assembly is easy with some basic tools ... think of it this way, the Military expects HS grads to be able to assemble/disassemble these rifles while in the field ... so, someone with some aptitude and a basic tool set
If you buy a complete upper/bolt than headspacing will already be set. I'm not sure on the procedure but I think headspace can be checked/set when assembling an upper with the barrel and bolt sourced separately - go, no-go gauges.
My first build took me about 2hrs .. done while reading the build threads during assembly ... my 2nd build took me about 20 minutes